20510362257

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{397}}^1\times {\mathrm{1609}}^1$

素因数の和:2166

約数の個数: 64

約数和(自身を含む): 34448332800

約数和(自身を除く): 13937970543

約数列:

[1, 3, 7, 11, 21, 33, 77, 139, 231, 397, 417, 973, 1191, 1529, 1609, 2779, 2919, 4367, 4587, 4827, 8337, 10703, 11263, 13101, 17699, 30569, 32109, 33789, 53097, 55183, 91707, 123893, 165549, 223651, 371679, 386281, 607013, 638773, 670953, 1158843, 1565557, 1821039, 1916319, 2460161, 4249091, 4471411, 4696671, 7026503, 7380483, 12747273, 13414233, 17221127, 21079509, 49185521, 51663381, 88789447, 147556563, 266368341, 621526129, 976683917, 1864578387, 2930051751, 6836787419, 20510362257]

約数ペア:

[(1, 20510362257), (3, 6836787419), (7, 2930051751), (11, 1864578387), (21, 976683917), (33, 621526129), (77, 266368341), (139, 147556563), (231, 88789447), (397, 51663381), (417, 49185521), (973, 21079509), (1191, 17221127), (1529, 13414233), (1609, 12747273), (2779, 7380483), (2919, 7026503), (4367, 4696671), (4587, 4471411), (4827, 4249091), (8337, 2460161), (10703, 1916319), (11263, 1821039), (13101, 1565557), (17699, 1158843), (30569, 670953), (32109, 638773), (33789, 607013), (53097, 386281), (55183, 371679), (91707, 223651), (123893, 165549)]